Re: [MPC8272ADS]Cannot start my Linux Kernel

[Jean-Michel Hautbois <jhautbois@gmail.com>]

2009/1/16 Scott Wood <scottwood@freescale.com>:
> Jean-Michel Hautbois wrote:
>>
>> OK, I just tried a make of my kernel (already compiled yesterday), and
>> it generated a cuImage.mpc8272ads kernel image (which it didn't do
>> yesterday).
>> I don't know why this image was generated, but I tried to reboot using
>> this one.
>
> Use uImage if you are providing a device tree from u-boot.  cuImage is fo=
r
> older u-boots that don't support this, though you could still try using i=
t
> on a modern u-boot with a one- or two-argument bootm command to try to
> isolate the problem.
>
> -Scott
>

OK, I just tried a cuImage and a ramdisk without a FDT. I am starting
to boot, but it freezes. Following is the boot evolution.

Thx & Regards,
JM

bootm 1000000 2000000
## Booting kernel from Legacy Image at 01000000 ...
   Image Name:   Linux-2.6.29-rc1-01197-g5a7b6e7-
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1529877 Bytes =3D  1.5 MB
   Load Address: 00400000
   Entry Point:  00400b94
   Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 02000000 ...
   Image Name:   Sofrel RAM Disk
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    3130063 Bytes =3D  3 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
   Loading Ramdisk to 03882000, end 03b7e2cf ... OK
Memory <- <0x0 0x4000000> (64MB)
ENET0: local-mac-address <- 00:04:9f:11:22:33
ENET1: local-mac-address <- 00:00:00:00:00:00
CPU clock-frequency <- 0x17d78400 (400MHz)
CPU timebase-frequency <- 0x17d7840 (25MHz)
CPU bus-frequency <- 0x5f5e100 (100MHz)

zImage starting: loaded at 0x00400000 (sp: 0x03b7ebe8)
Allocating 0x329908 bytes for kernel ...
gunzipping (0x00000000 <- 0x0040d000:0x007591d8)...done 0x308b0c bytes
Using loader supplied ramdisk at 0x3882000-0x3b7e2cf
initrd head: 0x1f8b0800

Linux/PowerPC load: root=3D/dev/ram rw
Finalizing device tree... flat tree at 0x767300
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:setio
MMU:exit
Using Freescale MPC8272 ADS machine description
Linux version 2.6.29-rc1-01197-g5a7b6e7-dirty (dev@gforge) (gcc
version 4.2.2) #2 Thu Jan 15 18:31:04 CET 2009
Found initrd at 0xc3882000:0xc3b7e2cf
console [udbg0] enabled
setup_arch: bootmem
mpc8272_ads_setup_arch()
PCI host bridge /pci@f0010800 (primary) ranges:
 MEM 0x0000000080000000..0x000000009fffffff -> 0x0000000080000000 Prefetch
 MEM 0x00000000a0000000..0x00000000bfffffff -> 0x00000000a0000000
  IO 0x00000000f6000000..0x00000000f7ffffff -> 0x0000000000000000
mpc8272_ads_setup_arch(), finish
arch: exit
Top of RAM: 0x4000000, Total RAM: 0x4000000
Memory hole size: 0MB
Zone PFN ranges:
  DMA      0x00000000 -> 0x00004000
  Normal   0x00004000 -> 0x00004000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00004000
On node 0 totalpages: 16384
free_area_init_node: node 0, pgdat c02ffc90, node_mem_map c0330000
  DMA zone: 128 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 16256 pages, LIFO batch:3
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: root=3D/dev/ram rw
PID hash table entries: 256 (order: 8, 1024 bytes)
time_init: decrementer frequency =3D 25.000000 MHz
time_init: processor frequency   =3D 400.000000 MHz
clocksource: timebase mult[a000000] shift[22] registered
clockevent: decrementer mult[666] sh=EF=BF=BD